JavaScript Math.log2()
Examples
let a = Math.log2(2.7183);
let b = Math.log2(2);
let c = Math.log2(1);
let d = Math.log2(0);
let e = Math.log2(-1);
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Definition and Usage
The Mat.log2() method returns the base-2 logarithm of a number.
Browser Support
Math.log2()
is an ECMAScript6 (ES6) feature.
ES6 (JavaScript 2015) is supported in all modern browsers:
Chrome | Edge | Firefox | Safari | Opera |
Yes | Yes | Yes | Yes | Yes |
Math.log2()
is not supported in Internet Explorer 11 (or earlier).
Syntax
Math.log2(x)
Parameters
Parameter | Description |
---|---|
x | Required. A number. |
Return Value
A number representing the base-2 logarithm of the number. If the number is -1, -Infinity is returned. If the number is less than -1, NaN is returned. |